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class 3000 6000# duplex steel female npt thread F51 threadolet

Categories Duplex Stainless Steel Pipe Fittings
Brand Name: HT
Model Number: ASTM A182 F51 threadolet
Certification: ISO TUV BV SGS,etc.
Place of Origin: China
MOQ: 1pc
Price: negotiable
Payment Terms: L/C, D/A, D/P, T/T, Western Union
Supply Ability: 10000000000pcs/month
Delivery Time: 5~50days
Packaging Details: plywood case,pallet,woven bag,carton,etc. as per your requirements.
product name: threadolet
Size: 1/8''~6''
Process: Forged
Standard: MSS SP97
Material: ASTM A182 F51
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class 3000 6000# duplex steel female npt thread F51 threadolet

class 3000 6000# duplex steel female npt thread F51 threadolet

1.Production deacription

StandardTypesClass Rating/ScheduleEndsSize
ASME B16.1190°Elbow/ 45°Elbow/ Tee/ Cross2000LBThreaded1/4''~4''
90°Elbow/ 45°Elbow/ Tee/ Cross/Pipe Cap/ Half Coupling/Full Coupling3000LB/6000LBThreaded1/4''~4''
90°Elbow/ 45°Elbow/ Tee/ Cross/Half Coupling/Full Coupling9000LBSocket-welding1/2''~2''
Street Elbow3000LBThreaded1/8''~2''
Lateral Tee3000LBSocket-welding1/4''~2''
Flush Bushing/Hex Bushing/Hex Plug/Round Plug/Square Plug3000LB/6000LBThreaded1/8''~4''
MSS SP79Reducer Inserts3000LB/6000LB/9000LBSocket-welding3/8‘’x1/4''~2x1/2''



MSS SP95Concentric/Eccentric Swaged NipplesSee Below Note11/4‘’~12''
Bull PlugsThreaded1/8''~12''
MSS SP97WeldoletSTD, XS, Sch 160/XXSButt-welding1/8''~36‘’ or larger
STD/XS/160/XXSButt-welding1/4''~2-1/2'' or larger
Flangolet,Nipolet,Sweepolet,etc. available as per client' demands.
BS3799Hex Nipple3000LB/6000LBThreaded1/8''~2''x1/2''
Pipe Nipple40/STD/80/XS /160/XXSSee Below Note11/8''~6''
Material GradeNickel AlloyASTM / ASME B/SB 564 UNS N02200 (NICKEL200), UNS N04400 (MONEL 400), UNS N08825(INCOLOY825), UNS N06600 (INCONEL 600), UNS 6601 (INCONEL 601), UNS N06625 (INCONEL 625), UNS N10276 ( HASTELLOY C 276), ASTM / ASME B/SB 160 UNS N02201 (NICKEL 201) ASTM / ASME B/SB 472 UNS N08020 ( ALLOY20 / 20CB3)
Copper AlloyASTM / ASME B/SB 151 UNS C70600 ( CU -NI- 90/10), C 71500 ( CU -NI- 70/30)
Stainless SteelASTM / ASME A/SA 182 F 304, 304L, 304H, 309H, 310H, 316, 316H, 316L, 316 LN, 317, 317L, 321, 321H, 347, 347 H.
Duplex and Super Duplex SteelASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,F904L
Carbon SteelASTM / ASME A/SA 105(N)
Low Temp Carbon SteelASTM / ASME A/SA 350 LF 2.
High Yield Carbon SteelASTM / ASME A/SA694 F52 F56 F60, F65, F70
Alloy SteelASTM / ASME A182 GR F5, F9, F11, F12, F22, F91.
TitaniumASME ASTM SB/B381 Grade 2, Grade 5, Grade 7
Note1PBE:Plain Both Ends BBE Bevel Both Ends TBE: Threaded Both Ends PSE:Plain Small End BSE:Bevel Small End TSE:Threaded Small End PLE:Plain Large End BLE:Bevel Large End TLE:Thread Large End
Note2For the swage nipples,pipe nipples,the material can be referred to the pipe standard.
Note3NPT(National Pipe Thread) FPT(Female Pipe Thread) MPT(Male Pipe Thread) BSPT(British Standard Pipe Thread)

2.Duplex Stainless Steel ASTM A182 F51 S31803 S32205 elbow tee cross pipe cap Material introduction

UNS S31803 F51 – Duplex stainless Steel


Related Specifications

EN10088-3 X2CrNiMoN22-5-3

ASTM A182 F51

W. Nr. 1.4462

NORSOK D41 to D45

3.Typical Chemical composition

PREn = Pitting Resistance Equivalent PREn= Cr% + 3.3Mo% + 16N%Carbon 0.03% MaxCarbon 0.03% Max
Silicon 1.00% MaxSilicon 1.00% Max
Manganese 2.00% MaxManganese 2.00% Max
Phosphorous 0.035% MaxPhosphorous 0.035% Max
Sulphur 0.015% MaxSulphur 0.015% Max
Chromium 21.0 – 23.0%Chromium 21.0 – 23.0%
Nickel 4.5 – 6.5%Nickel 4.5 – 6.5%
Molybdenum 2.5 – 3.5%Molybdenum 2.5 – 3.5%
Nitrogen 0.10 – 0.20%Nitrogen 0.10 – 0.20%
PREn >34PREn >34

Mechanical Property Requirements - Annealed condition

YieldTensile StrengthElongationCharpy Impact @ Rt JHardness
>450Mpa (65KSI)650 – 800Mpa (94 – 128KSI)25%100270HB Max


Forging temperature for this material should be 1100 – 1250oC Reheat as often as necessary and cool in still air.

Heat Treatment

Anneal – Heat to 1020 – 1120oC ensuring sufficient time is allowed for the centre to achieve furnace temperature and hold for a time commensurate with the ruling section, followed by water quenching.


Material in the annealed condition is readily machinable by all conventional methods.


F51 is readily weldable using many of the standard electric arc welding processes but oxyacetylene welding is not recommended because carbon pickup in the weld metal may occur.

4. Duplex Stainless Steel ASTM A182 F51 S31803 S32205 pipe fittingWeldolet Sockolet Threadolet

Q:How does your factory do regarding quality control?

A:Quality is priority. we always attach great importance to quality controlling from the beginning to the end.Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable.
Q:May I have some samples before bulk order?
A:Yes, of course. samples are free but you have to pay the courier.
Q:Can we visit your Company?
A:Surely. Welcome to China and we will be honored to have a customer and friend.
Q:What is the payment terms?
A:T/T, L/C ,Western Union,etc.
Q:What's your delivery time?
A:For stocks, we can send the goods to loading port within 7 days after receiving your deposit.
For production period, it usually needs about 10days- 60days after receiving the deposit.
Q:Is it OK to mark my logo on your products?
A:Yes. OEM and ODM are available for us

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